The only reason for not ingesting soft water would be if you are on a low sodium diet. RO water is NOT the same as "soft water". Hard water will give you cloudy cubes because of the suspended minerals in it. Some sites will say not to us RO water, but my icemakers, and others I service, have used it for decades without any problem, and with clear cubes.

Whole house remodel, ran copper for an icemaker, figuring it would come off a RO filter under sink. Heard a few theories about compatibility of RO water and copper, wondering what the collective wisdom of this board is. Copper is buried in wall.

Whole house remodel, ran copper for an icemaker, figuring it would come off a RO filter under sink. Heard a few theories about compatibility of RO water and copper, wondering what the collective wisdom of this board is. Copper is buried in wall.

TIA, Todd

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You shouldn't use copper after the water has been treated by a RO unit.

THere's a reason water is called the universal solvent. RO treated water is quite aggressive and is much more able to attack (dissolve) things verses more common water that contains minerals. Probably not a good idea to use it with a copper line.